A new dome-headed dinosaur speices found in Montana, Brontotholus harmoni, reveals unexpected clues about their evolution.

A newly described dinosaur that appears to have persisted beyond a catastrophic die-off is forcing scientists to rethink how mass extinctions actually play out on the ground. Instead of a clean break ...

Scientists have discovered a new dinosaur from Argentina with powerful claws, feasting on an ancient crocodile bone. The new find was possibly 23 feet long and hailed from a mysterious group of ...

With each new discovery in paleontology, we are gradually moving away from the Hollywood-inspired image of dinosaurs popularized by the Jurassic Park series. One of the most striking shifts has been ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

Paleontologists have discovered a new dinosaur species with a very distinctive feature, a sail-like structure running down its back, the Natural History Museum in London announced on Friday. The bones ...

Ankylosaurs, with their squat, armored bodies and bizarre, weaponized tails, are an iconic group of dinosaurs. While there were plenty of species present in the Cretaceous, they’re thought to have ...

When did these blockhead dinosaurs get their domes? A new fossil is “the specimen we have all been waiting for.” In this artist's reconstruction, two pachycephalosaurs from the new species Zavacephale ...

A site in the San Juan Basin of northwestern New Mexico is providing a rare glimpse into the last days of the dinosaurs. Rocks and fossils at the Naashoibito Member site show an ecosystem that was ...

A trove of specimens from New Mexico may help settle a long-running argument about the diversity of dinosaurs before their extinction. A life reconstruction of Alamosaurus sanjuanensis, from the ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed flourishing communities. Alamosaurus was one of the last dinosaurs from ...